Photocatalytic Oxidation of Glymes in an Aqueous Suspension of Titanium Dioxide PDF Download
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Author: Tuisko M. Buchholz
Publisher:
ISBN:
Category :
Languages : en
Pages : 142
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Book Description
"The photocatalytic oxidation of triglyme in an aqueous suspension of TiO2 has been studied, proving the concept to be feasible. Characterization of the light distribution in the reactor has been carried out and related to the influence of catalyst load. The rate of the reaction was considerably enhanced by introducing Cu2+ as co-catalyst and by controlling the pH, with the existence of an optimum co-catalyst concentration ([triglyme]/[Cu 2+] = 2) and an optimum pH at 3.5. The influence of both parameters is explained and the pathway of the interfacial charge-transfer reaction is proven to be of the Fenton type (indirect oxidation through activation of water) and not of the Photo-Kolbe type (direct attack of the holes)." --
Author: Tuisko M. Buchholz
Publisher:
ISBN:
Category :
Languages : en
Pages : 142
Get Book Here
Book Description
"The photocatalytic oxidation of triglyme in an aqueous suspension of TiO2 has been studied, proving the concept to be feasible. Characterization of the light distribution in the reactor has been carried out and related to the influence of catalyst load. The rate of the reaction was considerably enhanced by introducing Cu2+ as co-catalyst and by controlling the pH, with the existence of an optimum co-catalyst concentration ([triglyme]/[Cu 2+] = 2) and an optimum pH at 3.5. The influence of both parameters is explained and the pathway of the interfacial charge-transfer reaction is proven to be of the Fenton type (indirect oxidation through activation of water) and not of the Photo-Kolbe type (direct attack of the holes)." --
Author: Elizabeth Constance Butler
Publisher:
ISBN:
Category :
Languages : en
Pages : 266
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Book Description
Author: Philippe Jean-Luc Espitallier
Publisher:
ISBN:
Category :
Languages : en
Pages : 496
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Book Description
Author: Maria K. Nowotny
Publisher: Trans Tech Publications Ltd
ISBN: 3038133736
Category : Technology & Engineering
Languages : en
Pages : 360
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Book Description
Volume is indexed by Thomson Reuters BCI (WoS). The goal of this special volume was to provide a unique opportunity to exchange information, to present the latest results and to review relevant issues affecting contemporary diffusion research. The large number (over 232) of peer-reviewed papers emphasizes the considerable academic and industrial interest in this field.
Author: Tiruvannamalai C. Shivakumar
Publisher:
ISBN:
Category :
Languages : en
Pages : 210
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Book Description
Author: Magdalena Janus
Publisher: BoD – Books on Demand
ISBN: 9535134132
Category : Science
Languages : en
Pages : 260
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Book Description
Titanium dioxide is mainly used as a pigment and photocatalyst. It is possible to find it in food, cosmetics, building materials, electric devices, and others. This book contains chapters about characteristics of anatase and rutile crystallographic structure of titanium dioxide and the use of theoretical calculation for photoactivity determination.
Author: Mohamed A. Barakat
Publisher: Springer
ISBN: 3319242717
Category : Science
Languages : en
Pages : 39
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Book Description
In this brief, a comprehensive review of the UV/visible-TiO2 photocatalytic oxidation process is presented with an insight into the mechanisms involved, the role of titanium dioxide as a catalyst, irradiation sources, types of reactors, and a comparison between various modes of TiO2 application. An overview of the development and enhancement of the activity of TiO2 nanoparticles in photocatalysis is presented. The topics covered include a detailed look at the unique properties of the TiO2 nanoparticles and their relationship to photocatalytic properties. The utilization of the TiO2 nanoparticles as photocatalysts, in the non-doped and doped forms is also reviewed. Finally, the use of modified TiO2 nanoparticles has made a significant contribution in providing definitive mechanistic information regarding the visible light photocatalytic processes.
Author: Vladimiro Dal Santo
Publisher: MDPI
ISBN: 3038976946
Category : Science
Languages : en
Pages : 208
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Book Description
Although the seminal work of Fujishima et al. dates back to 1971, TiO2 still remains the most diffused and studied semiconductor, employed in photo-oxidation processes for cleantech (i.e., polluted water and air treatment), in solar fuel production (mainly hydrogen production by water photo splitting), and in Carbon Capture and Utilization (CCU) processes by CO2 photoreduction. The eleven articles, among them three reviews, in this book cover recent results and research trends of various aspects of titanium dioxide photocatalysis, with the chief aim of improving the final efficiency of TiO2-based materials. Strategies include doping, metal co-catalyst deposition, and the realization of composites with plasmonic materials, other semiconductors, and graphene. Photocatalysts with high efficiency and selectivity can be also obtained by controlling the precise crystal shape (and homogeneous size) and the organization in superstructures from ultrathin films to hierarchical nanostructures. Finally, the theoretical modeling of TiO2 nanoparticles is discussed and highlighted. The range of topics addressed in this book will stimulate the reader’s interest as well as provide a valuable source of information for researchers in academia and industry.
Author: Hafiz Muhammad Ali
Publisher: BoD – Books on Demand
ISBN: 1839694750
Category : Technology & Engineering
Languages : en
Pages : 246
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Book Description
This book presents a comprehensive overview of titanium dioxide, including recent advances and applications. It focuses on the compound’s uses in environmental remediation, photocatalytic materials, rechargeable lithium-ion batteries, thin films, energy storage, semiconductors, and much more. This volume is a useful resource for researchers, scientists, engineers, and students.
Author: Magdalena Janus
Publisher: BoD – Books on Demand
ISBN: 9535134299
Category : Science
Languages : en
Pages : 242
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Book Description
Titanium dioxide is mainly used as a pigment and photocatalyst. It is possible to find it in food, cosmetics, building materials, electric devices, and others. This book contains chapters about application of titanium dioxide in different branches of economy such as the agriculture, the food industry, the medicine, the cosmetics, the water treatment technologies, and the semiconductors.
